Modify Repmat function to concatenate array

13 次查看（过去 30 天）
Santos García Rosado
评论： Santos García Rosado 2021-2-9
Hello MathWorks community.
I'm trying to concatenate an array of my own "n" times. The thing is that each time each time I concatenate the array, I want to multiply it by 1, 10, 20...
For example, lets say my initial array is [0,1,2,3,4]. And that n =3. Then the output should look like:
out = [0,1,2,3,4,0,10,20,30,40,0,20,40,60,80]
I was wondering if I could use the repmat fucntion in some way to get this don, or is this function only useful for concatanating the exact same array?
Thank's for the help!
Santos

请先登录，再回答此问题。

采纳的回答

Stephen23
Stephen23 2021-2-9
Ran in:
V = [0,1,2,3,4];
n = 3;
X = [1,10*(1:n-1)];
Z = kron(X,V)
Z = 1×15
0 1 2 3 4 0 10 20 30 40 0 20 40 60 80

更多回答（1 个）

Monika Jaskolka
Monika Jaskolka 2021-2-9
If you want to understand how repmat works, take a look at the syntax and description in the documentation page: https://www.mathworks.com/help/matlab/ref/repmat.html.
I was able to do this using a loop:
n = 3;
init = [0, 1, 2, 3, 4];
out = init;
for i = 1:n-1
factor = 10*i;
out = horzcat(out, init.*factor);
end
  1 个评论
Santos García Rosado
Santos García Rosado 2021-2-9
Thank's Monika, the loop works aswell. I've read the documentation but still acan't figure out a way.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by